The MATADOR (Man-portable Anti-Tank, Anti-DOoR) is a 90-millimetre (3.5 in) man-portable, developed jointly by the Singapore Armed Forces (SAF) and the Defence Science and Technology Agency (DSTA) in collaboration with Rafael Advanced Defense Systems and Dynamit Nobel Defence (DND) joint team.. It is an updated version of the German Armbrust design, and operates on the same principles. The development of this weapon began in 2000 and the MATADOR will eventually replace the German-Singaporean Armbrust Light Anti-tank Weapon, which has been in service since the 1980s. The MATADOR saw its first combat deployment in January 2009, by Israel Defence Forces soldiers during Operation Cast Lead in the Gaza Strip. MATADOR-WB in particular was used to breach walls in structures, allowing IDF troops to pass through and attack opponents inside.
The warhead can be used in both High Explosive Anti-Tank (HEAT) and High Explosive Squash Head (HESH) modes against armor and walls or other fortifications respectively. Selection is done by extending a “probe” (most likely a fuse extender) for HEAT mode and leaving the “probe” retracted for HESH mode. Similar to the Armbrust, the countermass counteracts the recoil of the weapon upon firing. The countermass consists of shredded plastic, which is launched out of the rear of the weapon when it is fired. This plastic is rapidly slowed by air resistance, allowing the weapon to be fired safely within an enclosed space. In addition, the positioning of the countermass takes into consideration the centre of gravity of the weapon to ensure good balance for better accuracy.
The MATADOR is among the lightest in its class. The warhead is effective against both vehicle armour and brick walls. The weapon has little backblast, making it safe for operation in confined spaces. The MATADOR is supposed to be capable of defeating the armour of most known armoured personnel carriers and light tanks in the world. The dual-capability warhead, when acting in the delay mode, creates an opening greater than 450 mm (18 in) in diameter in a double brick wall, and acts as an anti-personnel weapon against those behind the wall, offering an unconventional means of entry when fighting in built-up areas. The MATADOR’s projectile is claimed to be insensitive to wind due to its propulsion system, which results in a highly accurate weapon system.